Results 31 to 40 of about 850,915 (318)

The Essential Norm of Operators on $A^p_\alpha(\mathbb{B}_n)$ [PDF]

open access: yes, 2012
In this paper we characterize the compact operators on $A^p_\alpha(\mathbb{B}_n)$ when $1-1$. The main result shows that an operator on $A^p_\alpha(\mathbb{B}_n)$ is compact if and only if it belongs to the Toeplitz algebra and its Berezin transform ...
Mitkovski, Mishko   +2 more
core   +2 more sources

Essential normality, essential norms and hyperrigidity

open access: yesJournal of Functional Analysis, 2015
28 ...
Matthew Kennedy, Orr Moshe Shalit
openaire   +2 more sources

Boundedness and Essential Norm of an Operator between Weighted-Type Spaces of Holomorphic Functions on a Unit Ball

open access: yesAxioms, 2023
The boundedness of a sum-type operator between weighted-type spaces is characterized and its essential norm is estimated.
Stevo Stević, Sei-Ichiro Ueki
doaj   +1 more source

Inequalities involving norm and essential norm of weighted composition operators [PDF]

open access: yesJournal of Mathematical Inequalities, 2017
Summary: We characterize the boundedness and compactness of the weighted composition operator acting from the weighted Bergman space \(\mathcal{A}^p(\sigma)\) to the Zygmund-type space \(\mathcal{Z}_\nu\), where \(\sigma\) is an admissible weight and \(\nu\) is a normal weight. Some upper and lower bounds for the norm and essential norm of the operator
Sharma, Ajay K.   +3 more
openaire   +1 more source

Norms of a Product of Integral and Composition Operators between Some Bloch-Type Spaces

open access: yesAxioms, 2023
We present some formulas for the norm, as well as the essential norm, of a product of composition and an integral operator between some Bloch-type spaces of analytic functions on the unit ball, in terms of given symbols and weights.
Stevo Stević
doaj   +1 more source

Common Law legal norm [PDF]

open access: yesStrani pravni život, 2021
In this paper the author attempts to define the otherness of common law legal norm in relation to that of a civilian one, through the analysis of differences identified in their formation and language.
Šite Damir A.
doaj   +1 more source

Essential norm of composition operators on Harmonic Bloch spaces

open access: yesFilomat, 2022
In this paper we characterize essential norm of composition operators on the spaces of Harmonic Bloch functions. We obtain some upper and lower bounds for the essential norm of composition operators between Harmonic Bloch function spaces. In some cases we find exact value of the essential norm such as in Theorems 2.7 and 2.11. These results
Estaremi, Y., Esmaeili, S., Ebadian, A.
openaire   +2 more sources

Super Poincaré Inequalities, Orlicz Norms and Essential Spectrum [PDF]

open access: yesPotential Analysis, 2010
We prove some results about the super Poincar inequality (SPI) and its relation to the spectrum of an operator: we show that it can be alternatively written with Orlicz norms instead of L1 norms, and we use this to give an alternative proof that a bound on the bottom of the essential spectrum implies a SPI.
openaire   +3 more sources

Differences of weighted composition operators between the Fock spaces

open access: yes, 2017
We study some important topological properties such as boundedness, compactness and essential norm of differences of weighted composition operators between Fock spacesComment: 10 ...
Khoi, Le Hai, Tien, Pham Trong
core   +1 more source

Global existence and full regularity of the Boltzmann equation without angular cutoff [PDF]

open access: yes, 2010
We prove the global existence and uniqueness of classical solutions around an equilibrium to the Boltzmann equation without angular cutoff in some Sobolev spaces. In addition, the solutions thus obtained are shown to be non-negative and $C^\infty$ in all
A. Bobylev   +62 more
core   +5 more sources

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